Credit: The Associated Press

FILE - In this Thursday, March 15, 2018 file photo, Rupert Stadler, CEO of German car producer Audi, briefs the media during the annual press conference in Ingolstadt, Germany. German authorities have detained the chief executive of Volkswagen's Audi division, Rupert Stadler, as part of a probe into manipulation of emissions controls. (AP Photo/Matthias Schrader)